build: add CMake and MinGW cross-compilation toolchain

2026-09-08 14:55:21 +02:00
parent d6705ab29f
commit 6e2859a1f6
3 changed files with 280 additions and 0 deletions
@@ -0,0 +1,134 @@
+#!/usr/bin/env bash
+# ---------------------------------------------------------------------------
+# build_windows.sh — cross-compile SerumAlt VST3 for Windows using MinGW-w64
+# ---------------------------------------------------------------------------
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$SCRIPT_DIR"
+
+TOOLCHAIN_FILE="mingw64-toolchain.cmake"
+BUILD_DIR="build_windows"
+OUTPUT_DIR="SerumAlt_Windows"
+PLUGIN_NAME="SerumAlt"
+
+# 1. Check for the MinGW-w64 cross-compiler and exit if it is not found.
+if ! command -v x86_64-w64-mingw32-g++ >/dev/null 2>&1; then
+    echo "ERROR: x86_64-w64-mingw32-g++ not found." >&2
+    echo "Please install the MinGW-w64 cross-compiler first, e.g.:" >&2
+    echo "    sudo pacman -S mingw-w64-gcc" >&2
+    exit 1
+fi
+
+echo "Found: $(command -v x86_64-w64-mingw32-g++)"
+
+# 2. Generate the CMake toolchain file.
+cat > "$TOOLCHAIN_FILE" <<'EOF'
+set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR x86_64)
+
+set(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
+set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
+set(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
+set(CMAKE_AR x86_64-w64-mingw32-ar)
+set(CMAKE_RANLIB x86_64-w64-mingw32-ranlib)
+set(CMAKE_STRIP x86_64-w64-mingw32-strip)
+
+set(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+EOF
+
+echo "Wrote toolchain file: $TOOLCHAIN_FILE"
+
+# 3. Configure with CMake + Ninja (VST3-only cross build, no test harness).
+cmake -S . -B "$BUILD_DIR" -G Ninja \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_TOOLCHAIN_FILE="$TOOLCHAIN_FILE" \
+    -DSERUMALT_BUILD_TESTS=OFF
+
+# 4. Build the VST3 target.
+cmake --build "$BUILD_DIR" --target SerumAlt_VST3
+
+# 5. Inject the VST3 moduleinfo.json.
+#    The automatic manifest step is disabled when cross-compiling (see
+#    CMakeLists.txt), because JUCE's manifest helper is a host tool that would
+#    otherwise be built as a Windows executable. The moduleinfo content is
+#    deterministic and platform-independent: it depends only on the plugin's
+#    name, manufacturer/plugin codes, and version, so we write the identical
+#    file that the native helper generates. Keep it in sync with the metadata
+#    in CMakeLists.txt (PLUGIN_CODE, PLUGIN_MANUFACTURER_CODE, VERSION).
+VST3_BUNDLE="$BUILD_DIR/${PLUGIN_NAME}_artefacts/Release/VST3/$PLUGIN_NAME.vst3"
+mkdir -p "$VST3_BUNDLE/Contents/Resources"
+cat > "$VST3_BUNDLE/Contents/Resources/moduleinfo.json" <<'EOF'
+{
+  "Name": "SerumAlt",
+  "Version": "1.0.0",
+  "Factory Info": {
+    "Vendor": "SerumAlt Audio",
+    "URL": "",
+    "E-Mail": "",
+    "Flags": {
+      "Unicode": true,
+      "Classes Discardable": false,
+      "Component Non Discardable": false,
+    },
+  },
+  "Classes": [
+    {
+      "CID": "ABCDEF019182FAEB53616C7453657261",
+      "Category": "Audio Module Class",
+      "Name": "SerumAlt",
+      "Vendor": "SerumAlt Audio",
+      "Version": "1.0.0",
+      "SDKVersion": "VST 3.7.8",
+      "Sub Categories": [
+        "Instrument",
+        "Synth",
+      ],
+      "Class Flags": 2,
+      "Cardinality": 2147483647,
+      "Snapshots": [
+      ],
+    },
+    {
+      "CID": "ABCDEF011234ABCD53616C7453657261",
+      "Category": "Component Controller Class",
+      "Name": "SerumAlt",
+      "Vendor": "SerumAlt Audio",
+      "Version": "1.0.0",
+      "SDKVersion": "VST 3.7.8",
+      "Sub Categories": [
+        "Instrument",
+        "Synth",
+      ],
+      "Class Flags": 2,
+      "Cardinality": 2147483647,
+      "Snapshots": [
+      ],
+    },
+    {
+      "CID": "ABCDEF01C0DEF00D53616C7453657261",
+      "Category": "Plugin Compatibility Class",
+      "Name": "SerumAlt",
+      "Vendor": "SerumAlt Audio",
+      "Version": "1.0.0",
+      "SDKVersion": "VST 3.7.8",
+      "Class Flags": 0,
+      "Cardinality": 2147483647,
+      "Snapshots": [
+      ],
+    },
+  ],
+}
+EOF
+
+# 6. Copy the resulting .vst3 bundle to SerumAlt_Windows/.
+mkdir -p "$OUTPUT_DIR"
+rm -rf "$OUTPUT_DIR/$PLUGIN_NAME.vst3"
+cp -R "$BUILD_DIR/${PLUGIN_NAME}_artefacts/Release/VST3/$PLUGIN_NAME.vst3" "$OUTPUT_DIR/"
+
+echo
+echo "Done. Windows VST3 plugin at: $SCRIPT_DIR/$OUTPUT_DIR/$PLUGIN_NAME.vst3"